Medical Devices TRIZ Cases

Thin polyamide film prevents gas transmission while maintaining flexibility, avoiding excessive wall thickness.

An extension tube connects the sheath hub to a remote control mechanism, allowing operators to manipulate equipment from a distance.

An expandable elongate member delivers therapeutic agents through a permeable surface into lung airways.

An infusion pump controller identifies consumable data to adjust control rules for precise fluid delivery.

A channel device uses a data buffer unit and transfer controller to move continuous data between storage and input-output devices.

Segmented catheter geometry navigates complex aortic arches by contacting vessel walls, resolving adaptability versus stability trade-offs.

A vascular access device septum integrates a gas permeable vent to allow internal air escape while blocking liquid entry.

Real-time optical detection differentiates tissue types, enabling precise adipose placement and reducing improper injection near muscles or ducts.

Spacer-based reinforcement limits tubular bending to prevent fluid flow compromise and clot formation in pediatric IV lines.

A stabilization device with a rotatable guide cylinder aligns needle channels to different insertion sites on subcutaneous ports.

Inline flow sensors measure fluid rates to adjust pump gating systems in real time.

A syringe pump adjusts plunger actuation speed using force sensor feedback to ensure precise liquid delivery.

Radially protruding wings anchor a subcutaneous base portion to bone, reducing detachment risks in thin skull structures.

Ingestible event markers replace unreliable patient reporting with automated electronic detection of medication ingestion, improving compliance data accuracy.

A flexible LED patch uses a multi-layer circuit pattern to attach securely to skin.

A medical liquid discharge assembly uses a locking part to fix the pressure-applying part position.

A noninvasive patient monitoring system calculates a dissolved oxygen index from optical sensors to display comprehensive oxygen state indications.

A pre-shaped catheter segment transitions from a 180-degree arc to navigate vascular pathways.

A detection method calculates pressure from piston force using a dynamic friction model that accounts for position and velocity changes.

A sliding time window analyzes pressure measurements against pump stroke and volume data to detect catheter blockages in ambulatory infusion devices.

A catheter insertion aid uses plate-like arms connected by a resilient hinge to clamp the shaft securely for easier handling.

A manifold release member separates a sealing layer to expose a medicament compartment.

An inverted flexible sleeve envelopes the housing of a medical connector to resolve graspability issues while maintaining low manufacturing cost.

Reusable motorized console connects to a separable irrigation pump cassette via enhanced mechanical and electrical interconnects.

Multi-layer drainage film with transparent regions enables direct wound observation during negative pressure therapy.

A needle guard assembly integrates a liquid-permeable cover member to filter solid particles from medical solutions during aspiration.

Self-aligning locking mechanisms enable interchangeable breaker modules to open medical tubing closures without manual positioning effort.

Series check valves control infusion flow to prevent excess delivery caused by ambient pressure fluctuations.

A segmented drug eluting catheter adjusts dosage by removing or masking specific regions to match patient needs.

Integrating a pressure sensor directly into the micropump chamber reduces device complexity and manufacturing cost while ensuring reliable fluid delivery.

Spacer maintains gap between piezoelectric film and flexible object to filter non-grip pressure signals.

A cosmetic device uses a honeycomb magnetization pattern to generate stronger magnetic fields.

An automated lubrication mechanism delivers fluid via a pump and valve system, eliminating manual reapplication needs.

Drug-eluting polymer matrices and selective membranes shield analyte indicators from immune attacks, maintaining measurement accuracy over extended periods.

Acoustic wave generators guide particles to specific outlets, eliminating mechanical damage during fluid fractionation.

Pressure sensors feed real-time data to a control module that modifies pumping speed and volume to compensate for line pressure variations.

Internal projections secure catheters to prevent contamination during handling.

A stiffener attached to the tether increases rigidity for easier capsule manipulation.

Plunger pump and check valves generate suction without external power, preventing backflow during emergency fluid extraction.

Intelligent agents analyze heterogeneous medical data to select diagnostic tests and processing techniques for patient management.

An electronic controller module regulates a motor-driven mechanical driver to manage syringe piston displacement and reduce operator strain.

A closed-loop drug delivery system uses integrated sensors to monitor biological conditions and adjust fluid administration in real-time.

System correlates patient efficacy inputs with sensed posture to adjust therapy programs, maintaining consistent symptom relief across varying positions.

A sterilizing-grade hydrophilic filter membrane purifies dialysis fluid within a patient line assembly.

An infusion arrangement adjusts fluid administration characteristics using tissue resistance information to achieve intended absorption rates.

A fluid collection assembly uses a porous material with an outer layer to absorb and wick bodily fluids through capillary action.

A portable catalytic fluid warmer uses a compact air-fuel mixing chamber to generate heat for biocompatible fluids without electrical energy.